Stephen Dickey
For RevB MBED Hardware, with the new boot sequence. This example establishes a transparent link between the mbed USB CDC port and the modem (LISA) on the C027. You can use it to use the standard u-blox tools such as m-center or any terminal program. These tools can then connect to the serial port and talk directly to the modem. Baudrate should be set to 115200 baud and is fixed. m-center can be downloaded from u-blox website following this link: http://www.u-blox.com/en/evaluation-tools-a-software/u-center/m-center.html
Dependencies: C027-REVB UbloxUSBModem mbed
Diff: main.cpp
- Revision:
- 0:92ab4f4846f8
- Child:
- 1:15b5edb4a91f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Dec 13 00:40:55 2013 +0000
@@ -0,0 +1,87 @@
+#include "mbed.h"
+#include "C027.h"
+#include "WANDongle.h"
+#include "USBSerialStream.h"
+#include "UbloxCDMAModemInitializer.h"
+#include "UbloxGSMModemInitializer.h"
+
+DigitalOut mdm_activity(LED);
+
+int main()
+{
+ int led_toggle_count = 5;
+
+ // the instantiation of the type, calls C027::C027
+ C027 c027;
+
+ c027.mdmPower(true);
+
+#if 0
+ while(1) {
+ mdm_activity = !mdm_activity;
+ wait(0.2);
+ }
+#else
+ while( led_toggle_count-- > 0 )
+ {
+ mdm_activity = !mdm_activity;
+ wait(0.2);
+ }
+#endif
+
+ // open the mdm serial port
+ WANDongle mdmDongle;
+ USBSerialStream mdmStream(mdmDongle.getSerial(1/* the CDC usually 0 or 1, LISA-C requires CDC1*/));
+ USBHost* host = USBHost::getHostInst();
+ mdmDongle.addInitializer(new UbloxCDMAModemInitializer(host));
+ mdmDongle.addInitializer(new UbloxGSMModemInitializer(host));
+
+ // open the PC serial port and (use the same baudrate)
+ Serial pc(USBTX, USBRX);
+ pc.baud(MDMBAUD);
+
+ while (1)
+ {
+ uint8_t buf[64];
+ size_t len;
+ int i;
+
+ if (!mdmDongle.connected())
+ {
+ mdmDongle.tryConnect();
+ }
+ else
+ {
+
+ // transfer data from pc to modem
+ len = mdmStream.space();
+ if (len>0)
+ {
+ if (len > sizeof(buf))
+ len = sizeof(buf);
+ for (i = 0; (i < len) && pc.readable(); )
+ buf[i++] = pc.getc();
+ if (OK == mdmStream.write(buf, i))
+ /* do something? */;
+ }
+ // transfer data from modem to pc
+ len = mdmStream.available();
+ if ((len>0) && pc.writeable())
+ {
+ if (len > sizeof(buf))
+ len = sizeof(buf);
+ if (OK == mdmStream.read(buf, &len, len))
+ {
+ for (i = 0; (i < len); )
+ {
+ mdm_activity=!mdm_activity;
+ pc.putc(buf[i++]);
+ }
+
+ // default the led to off
+ mdm_activity=0;
+ }
+ }
+ }
+ }
+}